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.(vNo Mod-tel.) Fl 'WESELI Stereotype Plate Holder:

No. 229,291. W Patented .lune 29,1880.

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UNITED `Simfree PATENT OFFICE.

FERDINAND WESEL, OF NEW YORK, N. Y.

STEREOTYPE-PLATE HOLDER.

SPECIFICATION forming part of Letters Patent No. 229,291, dated June 29, 1880.

Application filed April 10, 1880.

To all whom it may concern:

Be it known that I, FERDINAND WESEL, of New York, in the county and State of New York, have invented a new and Improved Stereotype-Plate Holder, ot' which the following is a specification.

This invention relates to a new apparatus for clamping and holding stereotype-plates and other plates on the blocks for use in printing; and the invention consists in a new arrangein ent of spring-slide for holding the plate properly in place, and for also permitting its ready detachment from the block, and likewise for iitting one block to the reception of plates of different sizes.

In the accompanying drawings, Figure l is a plan or top view of a block having my invention and holding a stereotype-plate. Fig. 2 is a vertical section of the same, showing the plate properly clamped and held. Fig. 3 is a vertical section of the same, showing the plate unlocked. Fig. 4. is an end view of the block with one of the sheet-metal end plates detached; and Fig. 5 is a side view of the instrument used for manipulating the clamping apparatus.

In the drawings, the letter A represents a block such as is usually used for holding stereotype and other plates. This block is at one or more sides provided with one or more slideclamps, B B, which are partly sunk into recesses formed in the block, as shown, and which, where'they project above the block, form small hooks a, which are intended to bear against the stereotype or other plate, C, and crowd it against fixed hooks or abutinents d. The shank of each slide-clamp B is in the form of a horizontal rod, c, as clearly shown in Figs. 2 and 3, which rod is itted into atube, D, that is inserted in the recess or cavity in the block, and confined in the block by a sheet metal or other end plate, E, which is screwed onto the end of the block to cover the entire clamping apparatus.

A spiral spring, f, embraces the shank e and bears against a head or enlargement, g, formed at the inner end of said shank, so that by the action of the spring fthe shank e will normally be crowded as far into its recess as possible, as shown in Fig. 2. I he hook part a of the clamp projects upward through a slot in the tube D and in the block A. The spring f (No model.)

seeks to carry the hook to the inner end of said slot, as clearly shown. The front or outer end of the spring f bears againstV a suitable fixed stop, h, at the inner end of the unslotted portion of the tube D.

The outer end of the slide B has at its lower side a projecting tongue, i, which, when the slide is drawn out, as indicated in Fig. 3, engages over the end or shoulder of a spring, G, that is iixed into the lower part of the tube I), as shown. In this position there is still a space between the outer end of the slide B and the covering-plate E, which space is marked j in Fig. 3, and which suffices to permit the insertion of a suitable tool or blade, l, wherewith to press down the spring G, release the slide B, and enable the spring f to throw the slide inward against the stereotype-plate (l, locking the same between the hooks c and ol in manner clearly shown in Fig. 2.

When it is desired to disengage the plate G from the block A the slide or Aslides B must be drawn away from the stereotype-plate. To facilitate this I have cut a notch, m, into or otherwise form a shoulder on the upper end of each slide to admit a prong, n, or suitable instrument for drawing theV slide outward and contracting the spring f. With this instrument the slide Bis drawn out unt-il it becomes spontaneously locked by the little spring, G.

l thus produce a stereotype-plate holder which is not liable to get out of order, and which is adjustable to differentsized plates, adapted to securely hold them in position, and to readily prepare the block for their reception.

For greater convenience I propose to attach the actuating-blade l and the prong fn, to one handle, producing thus an instrument, F, which is clearly shown in Fig. 5, by means of which instrument the plate can either be locked to or unlocked from the block.

I am aware that printin g-plates have already been attached to blocks by means of springcatches; but in such cases the plates had to be IOO I claiml. The combination of the slotted block A, having hook d, with the tube D, springf, and with the slide B, which slide is movable in drection parallel to the surface of the block, said slide having hook a, all arranged so 'that the plate C is clamped between the hooks d and u, 'substantially as herein shown and described.

2. The combination of the slide B, having hook a and tongue z', With the actuating-spring f. and holdingyspring,` G, for operation substantially as described.

3. The spring-slide B, having,` hook a., tongue i, and notch m, substantially as herein shown and described.

4. The combination of the covering-plate E with the tube D, spring-slide B, and holdingspring G, all arranged so that a space, j, is left between the slide and the plate E when 2o the slide is held fast by the spring G, substantially as herein shown and described.

5. The combination ofthe block A with the tube D, spring f, and with the slide B, said slide having hook a, substantially as herein 2 5 shown and described.

FERDINAND WESEL.

Witnesses WILLY G. E. SCHULTZ, J. B. CAMPBELL, Jr. 

